Demo.h

#ifndef DEMO_H
#define DEMO_H

#include <QMainWindow>
#include <QFrame>
#include <QtCore>
#include <QLocale>
#include <QTimer>
#include <QMatrix4x4>
#include <QVector3D>
#include <QVector2D>

#include <iostream>
#include <array>

#include <QOpenGLWidget>
#include <QOpenGLFunctions_3_3_Core>
#include <QOpenGLShaderProgram>


class MyGLWidget;

class CGMainWindow : public QMainWindow {

	Q_OBJECT

public:

    CGMainWindow (QWidget* parent = 0);

	MyGLWidget* ogl;
};


class MyGLWidget : public QOpenGLWidget, public QOpenGLFunctions_3_3_Core {

	Q_OBJECT

public:

    MyGLWidget(QWidget* parent, QMainWindow* window) : QOpenGLWidget(parent) {
        setFocusPolicy(Qt::StrongFocus);
        mainWin = window;
        /*timer = new QTimer(this);
        connect(timer, &QTimer::timeout, this, &MyGLWidget::updateAnimation);
        timer->start(20);*/
    }

public slots:
    void updateAnimation();

private:

	void initShader(QOpenGLShaderProgram& shader, std::string const& vertex, std::string const& fragment);
	void initShaders();

	std::pair<GLuint,GLuint> makeVAOfromAttributes(std::vector<QVector3D> const& attributes);

	void drawTriangles(GLuint vao, size_t size);

	void initializeGL();
	void paintGL();
	void resizeGL(int,int);

	void wheelEvent(QWheelEvent*);
	void mouseMoveEvent(QMouseEvent*);
	void mousePressEvent(QMouseEvent*);
	void mouseReleaseEvent(QMouseEvent*);
	void keyPressEvent(QKeyEvent* event);
    void updateTitle();

    void updateScaling(float change);
    void updateTranslation(QVector3D change);

    QMatrix4x4 getScalingMatrix(bool forJulia);
    QMatrix4x4 getTranslationMatrix(bool forJulia);


    int mouseX,mouseY,button;
    QVector2D pxToCompCoords(int x, int y);

    //QTimer* timer{nullptr};
    float mandelbrotScaling{1.0f};
    QVector3D mandelbrotTranslation{0.0, 0.0, 0.0};
    bool increasing{true};

    float juliaScaling{1.0f};
    QVector3D juliaTranslation{0.5f, 0.0, 0.0};
    QVector3D juliaC{0.0, 0.8, 0.0};

    bool drawJulia{false};


	QOpenGLShaderProgram simpleShader;
    QOpenGLShaderProgram juliaShader;

	GLuint vboTri, vaoTri;

    QMainWindow* mainWin{ nullptr };
};

#endif